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Finding the Fourth Proportional to 270,303.60, 372,990.39 and 149,425.40

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Solution

The fourth proportional to 270,303.60, 372,990.39 and 149,425.40 is: 206,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,303.60 : 372,990.39 = 149,425.40 : x
  2. Step 2: Convert to fraction form
    270,303.60/372,990.39 = 149,425.40/x
  3. Step 3: Cross multiply
    270,303.60x = 372,990.39 × 149,425.40
  4. Step 4: Simplify right side
    270,303.60x = 55,734,238,221.91
  5. Step 5: Solve for x
    x = 55,734,238,221.91/270,303.60
  6. Step 6: Final answer
    x = 206,191.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.